A Specific Blend of Drakolide and Hydroxymethylpyrazines: An Unusual Pollinator Sexual Attractant Used by the Endangered Orchid Drakaea micrantha.
drakolide
natural products
pollination
semiochemicals
sexual deception
Journal
Angewandte Chemie (International ed. in English)
ISSN: 1521-3773
Titre abrégé: Angew Chem Int Ed Engl
Pays: Germany
ID NLM: 0370543
Informations de publication
Date de publication:
13 01 2020
13 01 2020
Historique:
received:
11
09
2019
revised:
31
10
2019
pubmed:
22
11
2019
medline:
1
12
2020
entrez:
22
11
2019
Statut:
ppublish
Résumé
Bioactive natural products underpin the intriguing pollination strategy used by sexually deceptive orchids. These compounds, which mimic the sex pheromones of the female insect, are emitted in particular blends to lure male insect pollinators of specific species. By combining methods from field biology, analytical chemistry, electrophysiology, crystallography, and organic synthesis, we report that an undescribed β-hydroxylactone, in combination with two specific hydroxymethylpyrazines, act as pollinator attractants in the rare hammer orchid Drakaea micrantha. This discovery represents an unusual case of chemically unrelated compounds being used together as a sexual attractant. Furthermore, this is the first example of the identification of pollinator attractants in an endangered orchid, enabling the use of chemistry in orchid conservation. Our synthetic blend is now available to be used in pollinator surveys to locate suitable sites for plant conservation translocations.
Identifiants
pubmed: 31749192
doi: 10.1002/anie.201911636
doi:
Substances chimiques
Pheromones
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1124-1128Subventions
Organisme : Australian Research Council
ID : DE16101313
Pays : International
Organisme : Australian Research Council
ID : DE15010720
Pays : International
Organisme : Australian Research Council
ID : LP130100162
Pays : International
Organisme : Australian Research Council
ID : DP16010288
Pays : International
Organisme : Australian Research Council
ID : DP150102762
Pays : International
Informations de copyright
© 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
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